The migration of a broken pin following fixation of the acromioclavicular joint. A case report and review of the literature.

The use of smooth and threaded pins for internal fixation is often complicated by component migration, especially when employed about the acromioclavicular joint. A case report of pin breakage with subsequent migration is presented. This phenomenon occurred despite efforts to stabilize the pin corroborating the potential hazards and unpredictability of these implants. A protocol for the management of these devices, before and after component failure, is presented.